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Finding the Fourth Proportional to 58,311.63, 80,494.88 and 39,202.49

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Solution

The fourth proportional to 58,311.63, 80,494.88 and 39,202.49 is: 54,116.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,311.63 : 80,494.88 = 39,202.49 : x
  2. Step 2: Convert to fraction form
    58,311.63/80,494.88 = 39,202.49/x
  3. Step 3: Cross multiply
    58,311.63x = 80,494.88 × 39,202.49
  4. Step 4: Simplify right side
    58,311.63x = 3,155,599,728.25
  5. Step 5: Solve for x
    x = 3,155,599,728.25/58,311.63
  6. Step 6: Final answer
    x = 54,116.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.